The following example finds the commission plan in the COMMPLAN table, based on the current value of the commcode item in the EMPLOYEE block in the form, to verify that the code is valid.If the code i...
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2021-07-21 11:29:43
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trigger 触发器
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2013-12-13 20:38:34
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关于trigger写的挺详细的:https://www.cnblogs.com/xiaoyuersdch/p/7169773.html
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2018-04-10 10:09:05
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Example is given below to validate a Text Item in Oracle Forms with specific rules condition which can be define at run time with the use of T-List item and When-Validate-Item trigger. Below is the...
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2021-07-21 11:29:51
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Case具有两种格式。简单Case函数和Case搜索函数。--简单Case函数 CASE sex WHEN '1' THEN '男' WHEN '2' THEN '女' ELSE '其他' END --Case搜索函数 CASE WHEN sex = '1' THEN '男' WHEN sex = '2' THEN '女' ELSE '其他' END 这两种方式,可以实现相同的
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2022-07-20 11:32:36
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https://blog.csdn.net/indexman/article/details/8023740/ https://www.cnblogs.com/sharpest/p/7764660.html https://www.cnblogs.com/yaobolove/p/4781971.ht
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2019-06-24 23:54:00
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\ CASE 计算条件列表并返回多个可能结果表达式之一。CASE 具有两种格式:简单 CASE 函数将某个表达式与一组简单表达式进行比较以确定结果。 CASE 搜索函数计算一组布尔表达式以确定结果。 两种格式都支持可选的 ELSE 参数。语法 简单 CASE 函数:CASE input_expression
WHEN when_expression THEN result_e
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2024-01-25 21:00:09
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select a.id, (case a.sex when '1' then '0' else '1' end),b.department_id from USER a, user_department b where a.user_id=b.user_id;
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2021-09-08 09:57:15
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Case具有两种格式。简单Case函数和Case搜索函数。--简单Case函数CASE sexWHEN '1' THEN '男'WHEN '2' THEN '女'ELSE '其他' END--Case搜索函数CASE WHEN sex = '1' THEN&n
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2017-05-18 14:09:36
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用法如下: select case when exists(select 1 from t_test c where c.name = 'zhangsan' and c.age = 23 ) then 1 else 0 end from dual; select case when exists(s
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2017-05-03 11:32:00
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update studentsset grade = (select grade from(select id,case when current_credits > 90 then 'a' when c...
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2011-04-12 09:18:00
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CASE表达式可以在SQL中实现if-then-else型的逻辑,而不必使用PL/SQL。注意点: 1、以CASE开头,以END结尾 2、分支中WHEN 后跟条件,THEN为显示结果 3、ELSE 为除此之外的默认情况,类似于高级语言程序中switch case的default,可以不加 4、END 后跟别名 CASE有两种表达式: 1. 简单CASE表达式,使用表达式确定返回值.
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2022-07-26 07:52:12
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oracle case when 用法
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2021-07-30 14:31:41
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触发器: 当用户登录/退出或者操作某个数据对象或者进行DDL(建表,建view)引起某个储存过程的值的变化,把这个隐含被调用的过程,称为触发器。 语法 CREATE OR REPLACE TRIGGER trigger_name {before|AFTER} {insert,delete,updat
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2018-08-16 09:42:00
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oracle trigger 第一个demo是最简单的trigger的实例,是表触发器 -- unit one -- table trigger 最简单的表触发器,在table名为project表insert,update,delete时触发
create or replace trigger project_trigger_name
after insert or up
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2023-04-20 16:04:01
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1. 查询表上的触发器 select trigger_name from all_triggers where table_name='表名';例如: selecame=...
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2024-04-30 09:34:29
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1.DELETE TRIGGER,used for delete employer after delete the department. This is a rows trigger.CREATE OR REPLACE TRIGGER del_eptidAFTER DELETE ON deptmentFOR EACH ROW--Rows triggerBEGINDELETE FROM emp WHERE id=:old.id;END del_deptid;/2.INSERT TRIGGER,used for insert a new employer after create a new
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2011-01-20 14:56:00
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Sequence of triggers fires on Commit.1. KEY Commit2. Pre Commit3. Pre/On/Post Delete4. Pre/On/Post Update5. Pre/On/Post Insert6. On commit7. Post Database CommitSequence of triggers fires when ...
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2021-07-21 11:34:10
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Introduction ------------ This document lists the order in which triggers fire in Oracle Forms 4.5: o The first column, Action, describes the function to be performed (e.g. deleting a ...
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2021-07-21 11:42:00
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原文:oracle中merge into..using..on..when..when..用法语法:Sql代码 MERGE INTO [your table-name] [rename your table here] &nb
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2015-03-25 17:17:23
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